期刊
PHYSICAL REVIEW B
卷 101, 期 21, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.101.214515
关键词
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资金
- National Science Foundation [OAC-1740263, ACI-1548562]
- Binghamton University High Performance (SPIEDIE) Computing
- Leverhulme Trust [RL-2012-001]
- European Unions Horizon 2020 Research and Innovation Programme, under the Marie Sklodowska-Curie Grant Agreement SELPH2D [839217]
- US Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES) [DE-SC0020129]
- Marie Curie Actions (MSCA) [839217] Funding Source: Marie Curie Actions (MSCA)
- U.S. Department of Energy (DOE) [DE-SC0020129] Funding Source: U.S. Department of Energy (DOE)
Molybdenum ditelluride (MoTe2) is attracting considerable interest since it is the archetypal type-II Weyl semimetal and a candidate for topological superconductivity. We investigate the superconducting phase diagram of two MoTe2 polymorphs using the ab initio anisotropic Migdal-Eliashberg theory, and we show that the superconducting dome originates from the synergistic contribution of the density of states at the Fermi level and the transverse acoustic Te modes in the 1T' phase. We find that the electron and hole pockets carry trivial s-wave order parameters of slightly different magnitude, reminiscent of a two-gap structure as suggested by recent experiments. We suggest that a possible route for enhancing the superconducting critical temperature, and realizing s(+-) pairing, in the T-d phase is to exploit its nontrivial band topology via electron doping.
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